| Nov 25, 2013
| 4:30 PM
Comet ISON's day of reckoning is nearly upon us. On Thursday -- Thanksgiving Day -- the comet will reach perihelion, its closest approach to the sun. Whether it will survive the blistering heat of this encounter, and the powerful pull of the sun's...
| Nov 19, 2013
| 4:33 PM
Comet ISON appears to have sprouted wings.
Two wing-shaped features in the thin atmosphere around the head of Comet ISON were detected earlier this week by scientists from the Max Planck Institute for Solar System Research (MPS) in Germany. You can...
| Sep 20, 2013
| 3:08 PM
After nearly nine years in space and 4.7 billion miles traveled, NASA’s Deep Impact spacecraft has met an unexpected end after mission members lost contact with it last month. Though it was unable to complete its latest assignment, the comet-hunting...
| Sep 25, 2013
| 10:07 AM
NASA engineers have built a device that uses radar to detect heartbeats in the rubble of collapsed buildings, with technology typically used to explore other planets. The FINDER device, developed with the Department of Homeland Security, could help...
| Sep 26, 2013
| 10:28 PM
A series of discoveries from NASA's Curiosity rover are giving scientists a picture of Mars that looks increasingly complex, with small bits of water spread around the surface and an interior that could have been more geologically mature than experts...
| Oct 3, 2013
| 4:14 PM
Planetary scientists are breathing a sigh of relief as NASA’s MAVEN mission to Mars has been cleared for takeoff. The Mars Atmosphere and Volatile EvolutioN mission, slated for launch as early as Nov. 18, had been put on hold after this week's...
| Oct 2, 2013
| 3:22 PM
Hiding among the craters in a pockmarked Martian plain lie supervolcanoes that were so powerful that their explosions left deep scars in the ground, scientists say. The first supervolcanoes ever found on Mars, described online Wednesday in the journal...
| Oct 2, 2013
| 9:32 AM
Scientists have discovered that a huge, gassy exoplanet called Kepler-7b is covered with patchy clouds of silicates that might even rain liquid rock -- even though it’s within scalding distance of its parent star.
The findings, set to be published...
| Nov 15, 2013
| 5:23 PM
Comet ISON is brightening, and if you look up to the sky around dawn, you just may be able to see it without a telescope or binoculars.
"It kicked up its brightness like crazy in the past couple days," said Carey Lisse, coordinator of NASA's Comet...
| Nov 7, 2013
| 12:14 PM
A bizarre, never-before-seen asteroid with six comet-like tails has been found in the asteroid belt between Mars and Jupiter, and scientists are shocked.
"I'm trying not to use the word 'freak,'" said David Jewitt of UCLA and lead author of a paper...
| Nov 22, 2013
| 5:29 PM
MOJAVE NATIONAL PRESERVE — The sun is fading, the temperature is dropping and this desert party is just getting started.
They're prying open beer bottles and blasting rock music from an RV. Motorcycles rest on kickstands beside an ancient lava...